<template>
  <div>
    <span>当前求和：{{$store.state.num}}</span><br>
    <span>利用getters得到十倍后的值：{{$store.getters.bigNum}}</span><br>
    <select v-model.number="n">
      <option value="1">1</option>
      <option value="2">2</option>
      <option value="3">3</option>
      <option value="4">4</option>
    </select>
    <button @click="increment">+</button>
    <button @click="decrement">-</button>
    <button @click="incrementOdd">当前求和为奇数再加</button>
    <button @click="incrementWait">等一等再加</button>
  </div>
</template>

<script>
export default {
  name: 'UseVuex1',
  data() {
    return {
      n: 1,
      num: 0,
    }
  },
  methods: {
    increment() {
      // this.num += this.n
      // this.$store.dispatch('add', this.n)
      this.$store.commit('saveAdd', this.n)
    },
    decrement() {
      // this.num -= this.n
      // this.$store.dispatch('plus', this.n)
      this.$store.commit('savePlus', this.n)
    },
    incrementOdd() {
      // if (this.num % 2) {
      //   this.num += this.n
      // }
      this.$store.dispatch('addOdd', this.n)
    },
    incrementWait() {
      // setTimeout(() => {
      //   this.num += this.n
      // }, 500)
      this.$store.dispatch('addWait', this.n)
    }
  },
  mounted() {
    console.log(this)
  }
}
</script>

<style>

</style>